F04C 2240/809
Lubricant sump
F04C2240/809 (Lubricant sump) appears on 155 US grants and 169 published applications in this corpus.
Search patents in F04C- Granted patents
- 155
- Published applications
- 169
- Assignees
- 76
- Inventors
- 385
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 5 |
| 2007 | 1 | 3 |
| 2008 | 2 | 1 |
| 2009 | 3 | 6 |
| 2010 | 3 | 8 |
| 2011 | 2 | 3 |
| 2012 | 7 | 6 |
| 2013 | 5 | 9 |
| 2014 | 5 | 9 |
| 2015 | 8 | 9 |
| 2016 | 12 | 8 |
| 2017 | 10 | 10 |
| 2018 | 6 | 11 |
| 2019 | 6 | 12 |
| 2020 | 12 | 9 |
| 2021 | 5 | 14 |
| 2022 | 14 | 13 |
| 2023 | 16 | 13 |
| 2024 | 16 | 8 |
| 2025 | 14 | 7 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compressor including improved oil trap and home appliance including the compressor28 Jul 2026US 12,692,867 B2Samsung Electronics Co., Ltd.
- Refrigerant compressor including an oil level sensor arrangement26 May 2026US 12,638,324 B2Danfoss Commercial Compressors
- Airend having a lubricant flow valve and controller28 Apr 2026US 12,612,914 B2Ingersoll-Rand Industrial U.S., Inc.
- Compressor scroll provided with an oil sump fairing17 Feb 2026US 12,553,437 B2Danfoss Commercial Compressors
- Rear head with vortex oil separator for compressor and electric compressor with vortex oil separator17 Feb 2026US 12,553,438 B1Mahle International GmbH
- Scroll compressor28 May 2026US 2026/0146604 A1Kabushiki Kaisha Toyota Jidoshokki
- Connection assembly and compressor30 Apr 2026US 2026/0117759 A1
- Electric compressor30 Apr 2026US 2026/0117770 A1Kabushiki Kaisha Toyota Jidoshokki
- Co-rotating scroll compressor12 Mar 2026US 2026/0071623 A1Kabushiki Kaisha Toyota Jidoshokki
- Screw compressor22 Jan 2026US 2026/0022701 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Horizontal hermetic compressor having an oil reservoir24US 5,358,392 AMitsubishi Jukogyo Kabushiki Kaisha · 1994
- Scroll machine with reverse rotation protection21US 5,320,507 ACopeland Corporation · 1994
- Encapsulated compressor11US 4,792,288 ASiemens Aktiengesellschaft · 1988
- Baffle member for scroll compressors11US 8,152,503 B2Tecumseh Products Company · 2012
- Lubricant control valve for a screw compressor11US 8,454,334 B2Trane International Inc. · 2013